Add a feature flag to use a bundle compressed using Zstandard when setting up the default tools #2502
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This PR adds a feature flag to download a CodeQL Bundle compressed using Zstandard when setting up the default tools.
If we determine that
taris new enough, we will download the zstd-compressed bundle.We add a fallback mechanism: if setting up the zstd-compressed bundle fails, we will fall back to the gzip-compressed bundle.
We add PR checks to validate both setting up a zstd-compressed bundle when the feature flag is enabled, and the fallback mechanism.
Merge / deployment checklist